Bug 773160: expose a reduced 'navigator' object to social frameworker workers. r=gavin

toolkit/components/social/FrameWorker.jsm

@@ -99,7 +99,7 @@ FrameWorker.prototype = {
                      'atob', 'btoa', 'clearInterval', 'clearTimeout', 'dump',
                      'setInterval', 'setTimeout', 'XMLHttpRequest',
                      'MozBlobBuilder', 'FileReader', 'Blob',
-                     'navigator', 'location'];
+                     'location'];
     workerAPI.forEach(function(fn) {
       try {
         // XXX Need to unwrap for this to work - find out why!
@@ -109,6 +109,25 @@ FrameWorker.prototype = {
         Cu.reportError("FrameWorker: failed to import API "+fn+"\n"+e+"\n");
       }
     });
+    // the "navigator" object in a worker is a subset of the full navigator;
+    // specifically, just the interfaces 'NavigatorID' and 'NavigatorOnLine'
+    let navigator = {
+      __exposedProps__: {
+        "appName": "r",
+        "appVersion": "r",
+        "platform": "r",
+        "userAgent": "r",
+        "onLine": "r"
+      },
+      // interface NavigatorID
+      appName: workerWindow.navigator.appName,
+      appVersion: workerWindow.navigator.appVersion,
+      platform: workerWindow.navigator.platform,
+      userAgent: workerWindow.navigator.userAgent,
+      // interface NavigatorOnLine
+      get onLine() workerWindow.navigator.onLine
+    };
+    sandbox.navigator = navigator;
 
     // and we delegate ononline and onoffline events to the worker.
     // See http://www.whatwg.org/specs/web-apps/current-work/multipage/workers.html#workerglobalscope

toolkit/components/social/test/browser/browser_frameworker.js

@@ -405,5 +405,63 @@ let tests = {
         cbnext();
       }
     }
+  },
+
+  testNavigator: function(cbnext) {
+    let run = function() {
+      let port;
+      ononline = function() {
+        port.postMessage({topic: "ononline", data: navigator.onLine});
+      }
+      onoffline = function() {
+        port.postMessage({topic: "onoffline", data: navigator.onLine});
+      }
+      onconnect = function(e) {
+        port = e.ports[0];
+        port.postMessage({topic: "ready",
+                          data: {
+                            appName: navigator.appName,
+                            appVersion: navigator.appVersion,
+                            platform: navigator.platform,
+                            userAgent: navigator.userAgent,
+                          }
+                         });
+      }
+    }
+    let ioService = Cc["@mozilla.org/network/io-service;1"].getService(Ci.nsIIOService2);
+    let oldManage = ioService.manageOfflineStatus;
+    let oldOffline = ioService.offline;
+    
+    ioService.manageOfflineStatus = false;
+    let worker = getFrameWorkerHandle(makeWorkerUrl(run), undefined, "testNavigator");
+    let expected_topic = "onoffline";
+    let expected_data = false;
+    worker.port.onmessage = function(e) {
+      is(e.data.topic, "ready");
+      for each (let attr in ['appName', 'appVersion', 'platform', 'userAgent']) {
+        // each attribute must be a string with length > 0.
+        is(typeof e.data.data[attr], "string");
+        ok(e.data.data[attr].length > 0);
+      }
+
+      worker.port.onmessage = function(e) {
+        // a handler specifically for the offline notification.
+        is(e.data.topic, "onoffline");
+        is(e.data.data, false);
+
+        // add another handler specifically for the 'online' case.
+        worker.port.onmessage = function(e) {
+          is(e.data.topic, "ononline");
+          is(e.data.data, true);
+          // all good!
+          ioService.manageOfflineStatus = oldManage;
+          ioService.offline = oldOffline;
+          worker.terminate();
+          cbnext();
+        }
+        ioService.offline = false;
+      }
+      ioService.offline = true;
+    }
   }
 }